Help in choosing Lens

helloo! im hoping you can help me pick the right lens for my camera! , i have an EOS 50DDSLR, with a standerd 18-200mm lens!
i like the ones that give a great blur in the background, with a bit of a zoom but not fussed i love the macro's like the 60mm & 100mm, i also have been leaning towards the 50mm f1.4 lens, ..... i like portiture esp of children , and the occasional wedding ( thats what i hope to end up doing one day), i have been recomended , all those lens's above and also the Canon EF 24-70mm EF f/2.8L USM, the, Canon EF 135mm f/2L USM Lens, the Canon Lens 70-300mm EF f/4.5-5.6 DO IS USM and Canon EF-S 17-55mm f/2.8 IS USM Lens..... its realy confusing not to be able to put the lens onto my camera and be able to have a play! can you please help me, buy helping me choose the right lens's.

Thank- you

17-55mm seem to be the most popular on a crop - giving great IQ, color, and versatility.

Your current lens gives you the opportunity to try out the framing you'd get with any of those focal lengths you mention, except for going above 200mm (and even then you can imagine an image made up of the central two-thirds of the view at 200mm to appreciate 300mm). The only thing that won't show you is the separation you get with a wider aperture of the faster lenses. For that your best bet is to try one in a shop.

It sounds like you're not yet ready to choose a new lens. Your lens is a jack-of-all-trades, which should enable you to try all sorts of photography. Work some more with it until you start to find where its shortcomings are for you. That will help you identify what you need next far better than a random sampling of suggestions from other people.